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(No Model.) 2 Sheetsf-Sheet 1.

G. L. GARDNER.

y MUPELER FOR ENGINES. l No. 606,280. Patented June 28,1898.

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WIT/VESSES: IVVE/VTR G50-rye Lardner @Mg @iw le-0MM ATTORNEY.

(No Model.) l 2 sheets-snee; 2. G. L. GARDNER.

MUFPLER FOR ENGINES. No. 606,280. Patented June 28,1898. X

mE- v W/TNESSES l A /NVENTO/' ATTORNEY.

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Nrrnn STAT/ns ATnr GEORGE L. GARDNER, OF DAYTON, OHIO, ASSIGNOR OF ONE-HALF TO F. D. BITTINGER, OF SAME PLACE.

MUFFLER FOR ENGlNES.

SPECIFICATION forming part of Letters Patent No. 606,280, dated .T une 28, 1898. Application led-August 23, 1897. Serial No. 649,122. (No model.)

To @ZZ whom, t may concern: haust-pipe 7 of a gas or other engine, as

Be it known that I, GEORGE L. GARDNER, clearly shown in Fig. 1 of the drawings. The

` of Dayton, in the county of Montgomery and said shank 6 may be constructed of ordinary State of Ohio, have invented certain new and iron piping and has secured to its upper end 55 5 useful Improvements in Mufflers for Engines; a flaring sheet-metal portion 8, which merges and I do hereby declare the following to be a into a tubular portion 9. IVithin the tubular full, clear, and exact description of the inportion 9 is a cone-shaped spout 10, open at Vention, such as will enable others skilled in its upper end and located directly above the the art to which it appertains to make and upper end of the shank or stem 6. Beneath 6o lo use the same. the spout 10 and extending transversely of The object of this invention is to provide the stemv G is a rod or shaft 11, which has means for preventing noise from the exhaust mounted thereon a rotatable Wheel 12, the

of gas and other engines. blades 13 of 'which are substantially semicir- The invention consists'of an attachment for cular in form, each of them having an open- 65 15 the exhaust-pipe of gas-engines, comprising ing 14. therein. rlhe outer edges of the blades a cylindrical casing closed at its upper end, 13 are located a short distance from the inner having a central circuitous passage through surface of the stem 6, so that the passage of the center thereof formed by an inner tubuexhaust steam or gas around said Wheel is lar portion, and an annular discharge-passage unimpeded. 70

2o between the inner tubular portion and the Fitting upon the upper end of the cylinouter cylindrical casing. l drical or tubular portion 9 of the lower memrIhe invention also consists in other details ber 5 isa cap 15, having an annular rim 16,

of construction and combinations of parts,- which lits within theupper end of the tubuwhich will behereinafter more fully described lar portion 9. The flat top portion of the cap 75 z5 and claimed. 15 is formed with a series of circular open- In the drawings forming a part of this ings 17 17 therein, from which lead downspeciiication, Figure 1 represents a vertical Wardly tubesKlS 18, fitting within the cavity sectional View of my device applied to the exformed by the flaring portion 3, the tubular haust of an ordinary gas-engine. Fig. 2 is a portion 9, and the tapered or cone-shaped 8o 3o bottom plan view of the same. Fig. 3 is a despout 10 and located beneath the upper end tail perspective view, partly broken away, of of said cone-shaped spout. A ring or handle the upper member ofthe central tubular por- 19 may be connected to the cap 15 for the tion. Fig. l is a similar view of the lower purpose of removingit or for any purpose demember of the central tubular portion, the sired. 85

3 5 cap thereof, which itself consists of a separate Fitting upon the upper end of the tubular piece, being shown applied. Fig. 5 is a simiportion 9 of the lower member 5 is the interlar view of the intermediate member of the mediate portion 20, which is cylindrical in central tubular portion. form and has a cone-shaped upper end 2l,

Like reference-numerals indicate like parts thevopening 22 in which is covered by a sheet 9o 4o in the different views. of reticulated material23. Between the outer My improved muffler is made up of a casing surface of the cone-shaped upper end 21 of 1, preferably of sheet metal, cylindrical in the tubular member 2O and the outer'edge of form, and having `a closed cone-shaped upper said member an annular cavity 24 is formed end 2. Located within the casing 1 is a cenfor a purpose which will hereinafter appear. 95 45 tral tubular portion 3, whose outer surface is The top member 25 of the tubular. portion located a short distance from the inner sur- 2 is cylindrical in form and lits within the face of said casing, forming an annular pascylindrical upper end of the central member sage 4 for a purpose which Will hereinafter 20. The top 25 of the upper member 25 is appear. Said tubular portion is made up of formed with a series of circular openings 27 roo 5o alower member 5, having an internally-screw- 27, from which lead downwardly tubes 28 28,

threaded shank 6, adapted to lit upon the eX- the lower ends of said tubes fitting Within y e cease@ the annular cavity 2l at the upper end of the intermediate sheet-metal member 20.

The inncrtubular member 3, with the parts connected one tothe other, as above described, is located within the outer casing l., the top thereof lying a short distance beneath the top 2 of said easing. The same is held in place at its lower end by means of an annular disk 2U, whose outer edge is formed with an upwardly-extending annular flange SO, as clearly shown. The said disk surrounds the shank G and is formed with a series of openings il Ell, located in line with the passage el, located between the inner tubular member and the casing l.

The operation of my device is as follows: The shank G being attached to the exhaustpipe of a gas or other engine the passage of the exhaust through the device is up through the shank G, around the wheel l2, rotating the latter and breaking without impedin g the passa-ge of the exhaust. lt thence passes through the cene-shaped spout 10 and. abuts against the under side of the cap l5, passing thence downwardlyT into the annular chamber or compartment on the outside of the spout l0, and thence upwardly through. the tubes 1S 1S into the lower part of the central or intermediate member 2O of the cylindrical portion 3. From there it passes upwardly through the opening in the cone-shaped upper end 2l and abuts against the under side of the top part of the upper member 25, passing thence downwardly into the annular chamber 2l and upwardly through the tubes 27 27 into the annular passage Llbetween the inner surface of the casing l and the outer surface of the tubular member 3 and out through the openings 3l 3l in the annular disk 29. Through this course it will be seen that the exhaust from the engi ne is completely broken up and the noise incident to the discharge of the exhaust is effectually prevented.

Having now described my invention, what l claim as new, and desire to secure by lietters latent, is-

l. A. m u lli er or exhaust-breaker for engines, comprising a casing having a closed upper end, an inner tubular member located within said casing and forming an annular passage between it and the inner surface of said casing, a shank upon the lower end of said tubular member adapted to be secured to the exhaust-pipe of the engine, a circuitous passage through said tubular member including said annular' passage, and a rotatably-mounted wheel in said circuitous passage, substantially as and. for the purpose described.

f3. Amulllerorexhaust-breakerfor engines, comprising a casing having a closed upper end, an inner tubular member located within said casing and :forming an annular passage between it and the inner surface of said easing, a shank upon Athe lower end of said. tubnn lar member adapted to be secured to the haust-pipc of the engine, a cireuitous passage through said. tubular member including said annular passage, and a rotatably-mounted wheel in said circuitons passage whose blade;v are formed with openings, sul stantially as and for the purpose described.

A mufller or exhaust-breaker for engines, comprising a casing having a closed upper end, an inner tubular member located within said casing and forming an annular passage between it and the inner surface of said casn ing, a shank upon the lower end of saidtubu lar member adapted to be secured to the haust-pipe of the engine, a circuitous passage through said tubular member including said annular passage, a rod or shaft extending transversely of said shank, and a rotatablymounted wheel on said rod or shaft, the blades of which terminate a short distance from the inner surface of the passa-ge through said shank and are formed with openings, sub-- stantially as and for the purpose described.

4. A. muliler or cxhaust-ln'eaker for engines, made up of a plurality of members, the lower of which has a shank upon it adapted to he attached to the exhaust-pipe of the engine, a cone-shaped spout leading :from the 'upper end of said shank forming an annular cavity between it and the inner surface of said lower member, a cap secured to the upper end there-- of, having a series of openings therein, tubes leading downwardly from said openings and fitting within said annular cavity, an intermediate tubular member littin upon. said lower member and having a cone-shaped or tapered opening at its upper end forming an annular cavity between it and the inner surface of said intermediate member, an upper member whose top is `formed with a series of openings, and tubes leadin g downwardly from said openings and fitting within the annular cavity in the upper end of said intermediate member, substantially as and for the purpose described.

5. A muffler or eXhaust-lneaker for engines, made up of a plurality of members, the lower of which has a shank upon it adapted. to be attached to the exhaust-pipe of the engine, a transversely extendin g rotatably mounted wheel in the passage through said shank, a cene-shaped spout leading from the upper end of said shank forming an annular cavity between it and the inner surface of said lower member, a cap secured to the upper end thereof having' a series of openings therein, tubes leading downwardlyfrom said openin and ntting within said annular cavity, an iii-- termediate tubular member littingnpon said lower member and having a cone-shaped. or tapered opening at its upper end forming an annular cavity between it and the inner sur face of said intermediate member, an upper member whose top `is formed with a series el' openings, and tubes leading downwardly from said openings and fitting within the annular cavity in the upper end of said intermediate member, substantially as and for the purpose describedE G. A mullier or exhaust-breaker for en nes,

TOO

IIO

comprising a tubular casing having a closed upper end, a tubular portion located within said casing and forming an annular passage between it and the inner surface of said casing, the said inner tubular portion being made up of a plurality of members, the lower of which has a shank upon it adapted to be attached to the exhaust-pipe of the engine, a cone-shaped spout leading from the cavity between it and the inner surface of said lower member, a cap secured to the upper end thereof having a series of openings therein, tubes leading downwardly from said openings and fitting within said annular cavity, an intermediate tubular member fitting upon said lower member and having a cone-shaped or tapered opening at its upper end forming an annular cavity between it and the inner sur- .ings in line with said annular passage, substantially as and for the purpose described.

In testimony whereof 1 have signed this specification in the presence of two subscribing witnesses.

' GEO. L. GARDNER, Vitnesses:

L. BUTZ, J r., ALBERT EMANUEL. 

